Question

Please help me find the length!!

Answer 1

So, this would be a common circle question. 

First, 20 degrees from a circle's curcumference would be 20/360, which is 1/18.

This means that the length of the arc of AB should be 1/18 of the circumference.


The formula for the circumference it 2pi*r

2*pi*27=54pi

54pi* 1/18= 6 pi